US4578565A - Combined electric heating and water inlet/outlet assembly for water heating tanks - Google Patents

Combined electric heating and water inlet/outlet assembly for water heating tanks Download PDF

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Publication number
US4578565A
US4578565A US06/678,460 US67846084A US4578565A US 4578565 A US4578565 A US 4578565A US 67846084 A US67846084 A US 67846084A US 4578565 A US4578565 A US 4578565A
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US
United States
Prior art keywords
tank
water
sleeve
assembly
outlet
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Expired - Fee Related
Application number
US06/678,460
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English (en)
Inventor
Shmuel Dawidowitch
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Individual
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Individual
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Publication of US4578565A publication Critical patent/US4578565A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels
    • F24H9/0021—Sleeves surrounding heating elements or heating pipes, e.g. pipes filled with heat transfer fluid, for guiding heated liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
    • F24H9/133—Storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means

Definitions

  • the present invention relates to electric water heaters of the domestic type included in apartments or as back-up heated water source comprised in solar heating systems.
  • the invention therefore proposes most convenient, compact and easy to install--even as a "do it yourself” job--such water heating replacement units.
  • the invention also provides a convenient solution to the problem of electric element replacement which enables even the unskilled holder to replace the element himself without use of special tools and workmanship.
  • the said assembled structure lends itself to fit any required tank height, using a set of extention tubes to be supplied in a kit form.
  • a combined heating and water inlet/outlet assembly for domestic electric water heater tanks, having a circular bottom opening surrounded by a series of gudgeon bolts for fastening thereto an electric element mounting flange.
  • the assembly comprises a first, integrally formed unit having a circular flange adapted to cover the tank opening and fastened thereto by the gudgeons.
  • An open-top cylindrical sleeve extends upwardly from a central section of the flange, projecting to the interior of the tank.
  • a tapped opening in the central portion of the flange threadably receives a plug member carrying an electric immersion-type heating element which extends upwardly into the sleeve with its terminals projecting downwards.
  • a pair of tubular conduits form the water inlet and outlet of the tank, extend from the flange each along an outer generatrix of the sleeve, and downwards of the flange, for connecting thereto cold and heated water conduits.
  • a second, integrally formed unit comprises a closed top cylindrical member seated on top of the sleeve to form an extension thereof.
  • a tubular section extends along an outer generatrix of the cylindrical member, thus forming an extension of the outlet conduit.
  • An upwardly extending riser tube section is provided at the closed top of the cylindrical member, forming an outlet for water heated by the heating element.
  • a series of integrally formed pairs of parallel tube lengths fit one on top of the other and on top of the tubular outlet and the riser tube section, to form extensions thereof up to the top wall of the tank.
  • An opening at the wall of the cylindrical member is made for introducing water thereinto from the interior of the tank.
  • FIG. 1 is a general, schematic, three-dimensional view of the assembly according to the invention.
  • FIG. 2 is a longitudinal cross-sectional view of a water tank provided with the assembly of FIG. 1;
  • FIG. 3 shows in more detail the mounting of the assembly
  • FIG. 4 is a view taken along lines 4--4 of FIG. 3;
  • FIG. 5 is a view taken along lines 5--5 of FIG. 3;
  • FIG. 6 is an exploded view of the electric element and its mounting parts and components
  • FIG. 7 is a section taken along lines 7--7 of FIG. 6;
  • FIG. 8 is a bottom view taken along lines 8--8 of FIG. 7.
  • the inlet/outlet/electric heater assembly is comprised of three main parts, namely a first, bottom unit 2, a second, top unit 4 and an extension double-tube member 6.
  • a flange 12 of the standard measures and type namely, comprising openings 14 designed to become received by gudgeons 16 conventionally comprised around an opening 17 at the bottom of jacket 18 of the water tank and adapted to be tightened thereto by nuts 19 (see FIGS. 2 and 3); a sleeve-like, open top cylinder 20 extending from the central region of the flange 12, to a certain height thereabove; and outlet tube 26, joined to the sleeve 20 by a common wall portion 24 along a generatix thereof (FIG.
  • Sleeve 20 and inlet tube 26 are extended by a complementary, integrally formed top unit 4, snugly fit thereon, as shown. It comprises a cylinder 30 with a closed top 32, provided, however, with an opening extended by a riser tube section 33. Joined to an outer generatrix of the cylinder 30 is an outlet tube extension 34.
  • the double-tube member 6 comprises a series of joined tube pairs 35 and 36, 35' and 36', 35" and 36", and so forth if necessary, snugly received one on top of the other, rising from the level of the cylinder top 32 up to the top of the tank jacket 18. This arrangement allows the building-up of the tubes as dictated by the inner height of the tank jacket 18 into which the assembly is to be installed.
  • an integrally formed bushing 38 for rotatably supporting a swingable valve comprised of a rod 40 carrying a valve closure member 42.
  • the downwardly extended portion of the rod 40 is provided with a handle 44 (FIG. 5) for rotatably manipulating the valve closure 42 into a sealing contact with an opening 46 provided in the wall of the cylinder 30. Opening 46 provides communication between the interior of the assembly 1 and the body of water within the tank.
  • the bottom unit 2 carries a thermostat housing 48 mounted in a tapped bore 49 prepared in the flange 12 during the injection molding thereof.
  • an electric heating element 50 is accomplished in the following manner--see FIGS. 6-8.
  • Element 50 with its associated mounting disc 52 and rubber gasket disc 54 is attached, to a threaded, plastic molded plug 56. Openings 58 at the gasket 54, and 60 at the top wall of the plug 56, are made for the passage of the element's terminals 62 and 64.
  • a pair of gudgeons 66 are integrally made with the plug 56, and passed through openings 68 and 70 of the rubber gasket 54 and the mounting disc 52, respectively, to be fastened by nuts 72.
  • FIG. 7 there are further provided a pair of fixed, insulated electrical terminals in the form of metal threaded pins 74, embedded in the material of the plug 56 and projecting into in inner space of the plug, as shown. Finally, an inner polygonal contour 76 is formed at the bottom of the plug 56 for tightening of the threaded plug by a suitable tool.
  • a dished cover 80 is connected to outer shell 82 of the tank to complete its structure--FIG. 2.
  • the assembly namely the bottom unit 2 with cover cylinder 30 and a set of risers 35-36, supplied ex-factory, is readily adaptable for installment either in newly-produced water tanks or as a replacement for the old element housings in existing water heaters. All that is needed is to unscrew the gudgeon nuts of the old flange and substitute same by flange 12 with its associated parts, and reconnecting the water inlet and outlet tubes 28 and 26. Furthermore, should the electric element 50 become burnt-out, it can readily be replaced by unscrewing the plug 56 using a wrench or other tool agaist the polygonal surface 76.
  • mainpulatable valve In order to facilitate such replacements without need to empty the whole tank, mainpulatable valve should be first turned off, namely, by rotating the handle 44 (from outside the tank at the bottom of the flange 12) to bring the valve closure 42 into sealing engagement with the opening 46 at the cylinder 30. This will stop the water flow from the surrounding area of the tank into the sleeve 20 and cylinder 30 which enclose the element 50, thereby allowing but a small quantity of water to flow out from the tank when plug 56 is dismounted, only to bring the level of water down to the top of the riser 36.
  • the invention accomplishes most effectively the object of providing a neat, compact, and ready-to-use replacing and/or originally installed quick heating water inlet/outlet units, thereby drastically cutting down the costs of such replacements.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
US06/678,460 1983-12-07 1984-12-05 Combined electric heating and water inlet/outlet assembly for water heating tanks Expired - Fee Related US4578565A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL70402A IL70402A0 (en) 1983-12-07 1983-12-07 Electrical element unit for water heaters
IL70402 1983-12-07

Publications (1)

Publication Number Publication Date
US4578565A true US4578565A (en) 1986-03-25

Family

ID=11054716

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/678,460 Expired - Fee Related US4578565A (en) 1983-12-07 1984-12-05 Combined electric heating and water inlet/outlet assembly for water heating tanks

Country Status (4)

Country Link
US (1) US4578565A (de)
EP (1) EP0144921A3 (de)
IL (1) IL70402A0 (de)
ZA (1) ZA849309B (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293446A (en) * 1991-05-28 1994-03-08 Owens George G Two stage thermostatically controlled electric water heating tank
US5304286A (en) * 1987-03-26 1994-04-19 Palmer David G Water supply system
US6363218B1 (en) * 1999-01-15 2002-03-26 Ail Research, Inc. Liquid heater load control
GB2372801A (en) * 2001-02-28 2002-09-04 Islwyn Uhland Watkins Water storage container
WO2005121651A1 (en) * 2004-06-09 2005-12-22 Joseph Thomas Kapczuk Water heater
GB2454052A (en) * 2007-08-22 2009-04-29 Solassistance Ltd Fitting for hot water cylinder
GB2454689A (en) * 2007-11-14 2009-05-20 Steve Barson Device to facilitate the heating of a liquid
GB2460352A (en) * 2007-08-22 2009-12-02 Solassistance Ltd Fitting for hot water cylinder
WO2010069107A1 (zh) * 2008-12-17 2010-06-24 海尔集团公司 一种用于热水器的加热单元
US20100236649A1 (en) * 2006-06-21 2010-09-23 Shmuel Ben-Ishai Adaptor for hot water storage tank and method of use thereof
GB2474876A (en) * 2009-10-30 2011-05-04 Solassistance Ltd Fitting for a hot water cylinder
US20180231258A1 (en) * 2015-08-06 2018-08-16 Oxford University Innovation Limited Improvements in systems for heating water
US20190111894A1 (en) * 2016-03-18 2019-04-18 Murakami Corporation Washer tank
US10442406B2 (en) * 2014-12-02 2019-10-15 Murakami Corporation Device for heating washer fluid
GB2633166A (en) * 2023-06-15 2025-03-05 Atlantic Industrie Sas Immersion heater with flame-arrester flange

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324594A (en) * 1997-04-23 1998-10-28 Rainer Sickmann Immersion heater mounting
ITAN20080017U1 (it) * 2008-07-11 2010-01-12 Thermowatt Spa Dispositivo di riscaldamento integrato per scaldacqua ad accumulo

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL46314C (de) *
GB498977A (en) * 1937-04-13 1939-01-17 Konink Fabriek Inventum N V Improvements in or relating to hot water apparatus
GB513820A (en) * 1939-01-12 1939-10-23 John Henry Ewart Improvements in or relating to electric water heaters
DD132031A1 (de) * 1977-02-21 1978-08-16 Walter Foerste Anordnung zur erhoehung der sicherheit und lebensdauer bei heisswasserspeichern
US4403137A (en) * 1980-12-11 1983-09-06 Yitzhak Glazer Method of heating a body of liquid and a water heating unit for tanks utilizing such method
US4514617A (en) * 1983-01-19 1985-04-30 Haim Amit Two-stage electric water heater

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB328802A (en) * 1929-05-06 1930-05-08 Herbert Henry Berry Improvements in or relating to electric water heaters
DE2350729A1 (de) * 1973-10-10 1975-04-24 Leonid Schomann Ein elektrisches heizelement fuer boiler oder speicher
DE3137146C2 (de) * 1981-09-18 1984-04-12 Eureka, 4407 Emsdetten Warmwasserbereiter zur Erzeugung und Speicherung von heißem Wasser

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL46314C (de) *
GB498977A (en) * 1937-04-13 1939-01-17 Konink Fabriek Inventum N V Improvements in or relating to hot water apparatus
GB513820A (en) * 1939-01-12 1939-10-23 John Henry Ewart Improvements in or relating to electric water heaters
DD132031A1 (de) * 1977-02-21 1978-08-16 Walter Foerste Anordnung zur erhoehung der sicherheit und lebensdauer bei heisswasserspeichern
US4403137A (en) * 1980-12-11 1983-09-06 Yitzhak Glazer Method of heating a body of liquid and a water heating unit for tanks utilizing such method
US4514617A (en) * 1983-01-19 1985-04-30 Haim Amit Two-stage electric water heater

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5304286A (en) * 1987-03-26 1994-04-19 Palmer David G Water supply system
US5293446A (en) * 1991-05-28 1994-03-08 Owens George G Two stage thermostatically controlled electric water heating tank
US6363218B1 (en) * 1999-01-15 2002-03-26 Ail Research, Inc. Liquid heater load control
GB2372801A (en) * 2001-02-28 2002-09-04 Islwyn Uhland Watkins Water storage container
WO2005121651A1 (en) * 2004-06-09 2005-12-22 Joseph Thomas Kapczuk Water heater
US20100236649A1 (en) * 2006-06-21 2010-09-23 Shmuel Ben-Ishai Adaptor for hot water storage tank and method of use thereof
GB2460352A (en) * 2007-08-22 2009-12-02 Solassistance Ltd Fitting for hot water cylinder
GB2454052B (en) * 2007-08-22 2009-11-04 Solassistance Ltd Fitting for hot water cylinder
GB2460352B (en) * 2007-08-22 2010-04-28 Solassistance Ltd Fitting for hot water cylinder
GB2454052A (en) * 2007-08-22 2009-04-29 Solassistance Ltd Fitting for hot water cylinder
GB2454689A (en) * 2007-11-14 2009-05-20 Steve Barson Device to facilitate the heating of a liquid
WO2010069107A1 (zh) * 2008-12-17 2010-06-24 海尔集团公司 一种用于热水器的加热单元
GB2474876A (en) * 2009-10-30 2011-05-04 Solassistance Ltd Fitting for a hot water cylinder
US10442406B2 (en) * 2014-12-02 2019-10-15 Murakami Corporation Device for heating washer fluid
US20180231258A1 (en) * 2015-08-06 2018-08-16 Oxford University Innovation Limited Improvements in systems for heating water
US20190111894A1 (en) * 2016-03-18 2019-04-18 Murakami Corporation Washer tank
US10829095B2 (en) * 2016-03-18 2020-11-10 Murakami Corporation Washer tank
GB2633166A (en) * 2023-06-15 2025-03-05 Atlantic Industrie Sas Immersion heater with flame-arrester flange

Also Published As

Publication number Publication date
EP0144921A3 (de) 1986-02-26
ZA849309B (en) 1985-07-31
IL70402A0 (en) 1984-03-30
EP0144921A2 (de) 1985-06-19

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